SECTION 10.10
983
Prepress Support
TABLE 10.56 Entries in a version 2.0 OPI dictionary
KEY
TYPE
OPI COMMENT
VALUE
Type
name
(Optional)
The type of PDF object that this dic-
tionary describes; if present, must be
OPI
for an
OPI dictionary.
(Required)
The version of OPI to which this dic-
tionary refers; must be the number 2 or 2.0 (not
the name
2.0
, as in an OPI version dictionary).
%%ImageFilename
Version
number
F
file speci-
fication
byte string
(Required)
The external file containing the low-
resolution proxy image. (See implementation
(Optional)
The pathname of the file containing
the full-resolution image corresponding to this
proxy, or any other identifying string that
uniquely identifies the full-resolution image.
(Optional)
An array of pairs of the form
[
tagNum
1
tagText
1
…
tagNum
n
tagText
n
]
MainImage
%%MainImage
Tags
array
%%TIFFASCIITag
where each
tagNum
is an integer representing a
TIFF tag number and each
tagText
is an ASCII
string or an array of ASCII strings representing
the corresponding ASCII tag value.
Size
array
%%ImageDimensions
(Optional; see note below)
An array of two num-
bers of the form
[
width height
]
specifying the dimensions of the image in pixels.